[c#] Database

[Nuklear]

The problem is that all rows in the dictionary is the same as the first row. I might've overlooked the code, but do you find any mistakes in the following code that caused the undesirable result?

I'm using Mono.SQLite for your information.

Thanks in advance.

        /// <summary>
        /// Executes a SQL query
        /// </summary>
        /// <param name="query">The query to execute</param>
        /// <returns></returns>
        public Dictionary<int, List<object>> ExecuteQuery(string query)
        {
            Dictionary<int, List<object>> rows = new Dictionary<int, List<object>>();
            IDbCommand command = Connection.CreateCommand();
            command.CommandText = query;
            IDataReader reader = command.ExecuteReader();
            int c = 0;
            List<object> columns = new List<object>();
            while (reader.Read())
            {
                for (int i = 0; i < reader.FieldCount; i++)
                {
                    columns.Add(reader.GetValue(i));
                }
                rows.Add(c, columns);
                c++;
            }
            reader.Dispose();
            command.Dispose();
            return rows;
        }